/**
 * Applies a custom Scalar theme to the Monaco editor.
 *
 * This function loads CSS variables for either dark or light mode, maps the colors to Monaco's editor theme keys,
 * and then applies the new theme. Theme color tokens are resolved from CSS custom properties.
 *
 * Example usage:
 *
 *   await applyScalarTheme('scalar', true);  // Apply dark mode
 *   await applyScalarTheme('scalar', false); // Apply light mode
 *
 * @param theme - The theme string key to load variables for (e.g. 'scalar').
 * @param isDarkMode - Whether to use dark or light variables.
 */
export declare const applyScalarTheme: (theme: string, isDarkMode: boolean) => Promise<void>;
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